ST5.5*25Hex Head Self-Tapping Screws 304 Stainless Steel DIN7976 (2500pcs/Pkg) Weight-Pound:23.1 Flange nylon insert lock nuts

Flange nylon insert lock nuts combine a flange base with a nylon insert to prevent loosening due to vibration

These general-use flat washers are placed under the head of a bolt or nut to create a smooth bearing surface and distribute the load over a wider area

making them ideal for securing bolts and nuts in dynamic applications

Their countersunk shape allows for flush mounting

They come in various sizes and are commonly used in automotive and construction applications for enhanced stability and support

ST5.5*25Hex Head Self-Tapping Screws 304 Stainless Steel DIN7976 (2500pcs/Pkg) Weight-Pound:23.1 Flange nylon insert lock nuts